:root {
  --bg: #edf2f4;
  --panel: #ffffff;
  --ink: #152630;
  --muted: #64757d;
  --line: #d7e2e3;
  --accent: #075b5e;
  --blue: #0a7779;
  --danger: #a22d22;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(135deg,#e8f1f2 0%,#f4f3f1 50%,#edf2f4 100%);
  color: var(--ink);
  font: 15px/1.5 Arial, "Noto Sans SC", sans-serif;
}

button, input, textarea {
  font: inherit;
}

button {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #eef6f4;
  color: var(--ink);
  padding: 8px 12px;
  cursor: pointer;
}

button:hover { background: #e3efee; border-color: #0a7779; }
button.danger { color: var(--danger); border-color: #c39a94; }

.shell {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px;
  box-shadow: 0 14px 38px rgba(38,57,64,.09);
}

h1, h2 {
  margin: 0;
  font-weight: normal;
}

h1 { font-size: 28px; }
h2 { font-size: 18px; color: var(--accent); }
p { margin: 6px 0 0; color: var(--muted); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
  border-radius: 8px;
}

.login {
  max-width: 420px;
}

.workspace {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 18px;
}

.hidden { display: none !important; }

.pane-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

label {
  display: block;
  margin: 0 0 12px;
  color: var(--muted);
}

input, textarea {
  width: 100%;
  margin-top: 5px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 9px;
}

textarea {
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 12px;
  padding: 10px;
  border: 1px solid var(--line);
  background: #eef6f4;
}

.upload-btn {
  width: auto;
  margin: 0;
  border: 1px solid var(--line);
  background: #eef6f4;
  color: var(--ink);
  padding: 8px 12px;
  cursor: pointer;
}

.upload-btn input {
  display: none;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 170px;
  gap: 12px;
}

.posts {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.life-head {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.side-hint {
  margin: -4px 0 10px;
  font-size: 13px;
}

.life-posts .post-row {
  border-color: #cdbb9d;
  background: #fffaf0;
}

.post-row {
  width: 100%;
  text-align: left;
  background: #f7fbfa;
}

.post-row.active {
  border-color: var(--blue);
  background: #eef6fb;
}

.post-row strong {
  display: block;
  font-weight: normal;
}

.post-row span {
  color: var(--muted);
  font-size: 13px;
}

.hint {
  font-size: 13px;
}

.hint code {
  background: #eee7d9;
  padding: 1px 4px;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: 420px;
  background: #222;
  color: #fff;
  padding: 11px 14px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 14px;
  margin-top: 14px;
}

.pane-head.tight {
  margin-bottom: 8px;
}

.preview {
  min-height: 160px;
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--line);
  background: #fff;
  padding: 14px;
}

.preview img,
.article img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 14px auto;
}

.preview video,
.article video {
  max-width: 100%;
  display: block;
  margin: 14px auto;
}

.article blockquote {
  margin: 14px 0;
  padding-left: 14px;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.article pre {
  overflow: auto;
  background: #f3eee3;
  border: 1px solid var(--line);
  padding: 12px;
}

.media-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
}

.media-item {
  border: 1px solid var(--line);
  background: #fbf7ee;
  padding: 8px;
}

.media-item img,
.media-item video {
  width: 100%;
  max-height: 120px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
}

.media-item button {
  width: 100%;
  margin-top: 6px;
}

@media (max-width: 860px) {
  .workspace, .grid, .split {
    grid-template-columns: 1fr;
  }
}

.bar-actions { display: flex; align-items: center; gap: 8px; }
.bar-actions a { padding: 8px 12px; color: var(--accent); border: 1px solid var(--line); border-radius: 7px; text-decoration: none; background: #fff; }
input:focus, textarea:focus { outline: 2px solid rgba(10,119,121,.2); border-color: var(--blue); }